public void Intersecting_a_translated_shape_with_a_ray()
{
var ray = new Ray(
Tuple.Point(0, 0, -5),
Tuple.Vector(0, 0, 1));
var shape = new TestShape();
shape.Transform = Transformation.Translation(5, 0, 0);
shape.Intersect(ray);
Assert.AreEqual(Tuple.Point(-5, 0, -5), shape.LocalRay.Origin);
Assert.AreEqual(Tuple.Vector(0, 0, 1), shape.LocalRay.Direction);
}
public void Intersecting_a_scaled_shaped_with_a_ray()
{
var ray = new Ray(
Tuple.Point(0, 0, -5),
Tuple.Vector(0, 0, 1));
var shape = new TestShape();
shape.Transform = Transformation.Scaling(2, 2, 2);
shape.Intersect(ray);
Assert.AreEqual(Tuple.Point(0, 0, -2.5), shape.LocalRay.Origin);
Assert.AreEqual(Tuple.Vector(0, 0, 0.5), shape.LocalRay.Direction);
}